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Schedule C
Schedule C

Schedule CProfit or Loss From Business (Sole Proprietorship)

10 — Commissions and Fees Updated for tax year 2025

Does this apply to you?

  • You sell on platforms that charge seller fees (Etsy, Amazon, eBay, Shopify)
  • You use payment processors that charge transaction fees (Stripe, Square, PayPal)
  • You pay referral fees or commissions to independent contractors who bring you business
  • You pay broker fees or agent commissions related to your business operations

Easy to overlook

Payment processing fees are deductible here Every time Stripe takes 2.9% + 30 cents, or PayPal takes its cut, or Square charges a swipe fee, that is a deductible business expense. These fees add up fast — a business processing $100,000 in credit card sales pays $3,000+ in processing fees. Many sole proprietors never track these separately because the money is deducted before it hits their bank account. 1 General filing pattern — missed platform fee deductions

Platform fees already subtracted from 1099-K payouts If your 1099-K shows net payouts (after platform fees), and you report that net number on line 1, do not also deduct the platform fees here — you would be double-counting. Either report gross sales on line 1 and deduct fees on line 10, or report net payouts on line 1 and skip line 10. Pick one approach and be consistent. 2 IRS Schedule C instructions — Line 10

Watch out for this

Forgetting to deduct platform and payment processing fees because they are automatically subtracted from payouts. If you report gross revenue on line 1 (which the IRS prefers because it matches your 1099-K), you must capture these fees as a deduction somewhere. Line 10 is the correct place.

Footnotes

  1. IRS Schedule C (Form 1040) Instructions. See also IRS Publication 17, Your Federal Income Tax. https://www.irs.gov/pub/irs-pdf/p17.pdf

  2. IRS Schedule C (Form 1040) Instructions, Line 10. https://www.irs.gov/instructions/i1040sc

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